[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#54624: 29.0.50; textsec and ipv6 addresses
From: |
Mattias Engdegård |
Subject: |
bug#54624: 29.0.50; textsec and ipv6 addresses |
Date: |
Mon, 4 Apr 2022 14:48:37 +0200 |
4 apr. 2022 kl. 12.42 skrev Lars Ingebrigtsen <larsi@gnus.org>:
> Fine by me, but addresses that are too long should be suspicious (to
> catch people obfuscating by doing things like 000000000000000127.0.0.1
> and similar). That's what I was intending to catch with the {} things
> without having to actually do the hard maths myself. :-)
I agree that is desirable. If a strict parse is impractical (not sure if it
is), what about something slightly stricter than what we current have? Here is
a straw-man proposal:
(rx-let ((octet (or "0" (: (in "1-9") (? (in "0-9") (? (in "0-9"))))))
(ipv4 (: octet (= 3 "." octet)))
(hextet (** 1 4 (in "0-9a-f")))
(ipv6 (: (? "::") hextet (* ":" (? ":") hextet)
(? (or "::" (: ":" ipv4) )))))
(rx bos (or ipv4 ipv6 (: "[" ipv6 "]")) eos))
and don't forget to bind case-fold-search to nil while calling string-match-p
since IPv6 specifies lower-case hex digits.
And thanks to Andreas for reminding me about IPv6 allowing dotted quads as well.
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/03
- bug#54624: 29.0.50; textsec and ipv6 addresses, Lars Ingebrigtsen, 2022/04/03
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/03
- bug#54624: 29.0.50; textsec and ipv6 addresses, Andreas Schwab, 2022/04/03
- bug#54624: 29.0.50; textsec and ipv6 addresses, Lars Ingebrigtsen, 2022/04/04
- bug#54624: 29.0.50; textsec and ipv6 addresses,
Mattias Engdegård <=
- bug#54624: 29.0.50; textsec and ipv6 addresses, Robert Pluim, 2022/04/04
- bug#54624: 29.0.50; textsec and ipv6 addresses, Lars Ingebrigtsen, 2022/04/06
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/06
- bug#54624: 29.0.50; textsec and ipv6 addresses, Lars Ingebrigtsen, 2022/04/07
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/07
- bug#54624: 29.0.50; textsec and ipv6 addresses, Andreas Schwab, 2022/04/07
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/08
- bug#54624: 29.0.50; textsec and ipv6 addresses, Andreas Schwab, 2022/04/08
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/08
- bug#54624: 29.0.50; textsec and ipv6 addresses, Mattias Engdegård, 2022/04/11